I asked your question to the Payroll. Copying the reply they gave to me about the 8000$ one i.e. the tax treaty:"The 1042-S with the $8,000 is the treaty benefi...

Same case happened for me too. I am in f1 visa, entered USA in 2017 so a resident alien for tax purposes now. I used turbotax to efile my return. It has been ac...